Cisco Systems ASR 1000 manual Xii

Preface

Command syntax descriptions use the following conventions:

Convention	Description
bold	Bold text indicates commands and keywords that you enter exactly as shown.
italics	Italic text indicates arguments for which you supply values.
[x]	Square brackets enclose an optional element (keyword or argument).
	A vertical line indicates a choice within an optional or required set of keywords
	or arguments.
[x y]	Square brackets enclosing keywords or arguments separated by a vertical line
	indicate an optional choice.
{x y}	Braces enclosing keywords or arguments separated by a vertical line indicate a
	required choice.

Nested sets of square brackets or braces indicate optional or required choices within optional or required elements. For example:

Convention		Description
[x {y z}]		Braces and a vertical line within square brackets indicate a required choice
		within an optional element.
Examples use the following conventions:
Convention		Description
screen		Examples of information displayed on the screen are set in Courier font.
bold screen		Examples of text that you must enter are set in Courier bold font.
<	>	Angle brackets enclose text that is not printed to the screen, such as passwords.
!		An exclamation point at the beginning of a line indicates a comment line. (Ex-
		clamation points are also displayed by the Cisco IOS software for certain pro-
		cesses.)
[	]	Square brackets enclose default responses to system prompts.

The following conventions are used to attract the attention of the reader:

Caution Means reader be careful. In this situation, you might do something that could result in equipment damage or loss of data.

Note Means reader take note. Notes contain helpful suggestions or references to materials that may not be contained in this manual.

Cisco IOS XE Integrated Session Border Controller Configuration Guide for the Cisco ASR 1000 Series Aggregation Services Routers

xii OL-15421-01